.deng-img1{
    width: 70%;
    height: 200px;
    margin-top: 20px;
}
.deng-title{
    text-align: center;
    margin-top: 60px;
}
.deng-img2{
    width: 70%;
    height: 40px;
    margin-top: 30px;
}
.deng{
    text-align: center;
}

.demo-button {
.rv-button {
    margin: 30px 8px 12px 0;
    width: 70%;
    margin-left: 55px;
}

.rv-button-group {
    
    .rv-button {
    margin: 0px;
    
    
    }
}
}

.deng-kuang{
    // border: 1px solid red;
    background: rgb(255, 255, 255);
}
.deng-one{
    text-align: center;
    // background: rgb(223, 223, 223)
   
}


  
 
